Double snap-hook.



E. F. GROTZ & W. W. JONES.

DOUBLE SNAP HOOK.

APPLICATION FILED JUNE 24,1915.

1,175,437; Patented Mar. 14,1916.

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EDWARD FRANKLIN GROI'Z AND WILLIAM WALTER JONES, OF BRIDGEPORT,

' CONNECTICUT.

DOUBLE SNAP-HOOK.

Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed June 24, 1915. Serial No. 36,029.

To all whom it may concern.

Be it known that we, ED ARD FRANKLIN Gno'rz and lViLLiAM VALTER JoNns,citizens of the United States, residing at Bridgeport,

for use in fastening antiskidding chains upon automobile tires, butwhich may be used with equal efi?ect1veness for various other purposes,such as upon hitching chains, draft chains, and the like.

The object of the invention is to provide a cheap, simple and efiicientdouble snaphook, and relates particularly to the novel, and inexpensiveand eflicient manner of con necting the spring tongue to the hook.

In the drawings, illustrating the invention, in the several figures ofwhich like parts are similarly designated, Figure 1 is a perspectiveview of our improved snaphook. Fig. 2 is a side elevation of the samedrawn on a larger scale. Fig. 3 is a face view of the same. the springtongue. tion of the link of the hook, the spring being omitted. Fig. 6is aface view of the same. Fig. 7 is a horizontal section drawn on alarger scale on the line aa of Fig. 2.

1 designates our improved snap-hook, constructed preferably of malleablemetal, and comprising an open link having one end 2 thereof cut away, asat 3, to provide a seat 3 for the free end of the spring tongue l, theopposite end of said spring tongue being held in a saw slot 5 (Fig. 5)produced in the opposite end 2 of the link, the end of the spring tonguebeingsecurely held in position in the end 2 of the link in a manner aswill now be described.

The sides of the spring tongue 4, adjacent to the anchor end thereof,are formed with notches or recesses 6, the width of the metal of thespring tongue between the notches or recesses being slightly less thanthat of the diameter of the end 2 of the link or loop, whereby to permitthe metal of the link or loop being forced inwardly to securely fastenthe spring tongue in position. I

In the manufacture of the link, the blank,

(asshown in Figs. 5 and 6), is first formed,

Fig. 4 is a face view of Fig. 5 is a slde elevathe base or notched endof the spring tongue 4 is then inserted in the saw slot 5, with the freeend of the tongue resting against the seat 3, after which the sides ofthe end 2 of the link are compressed and bent in \vardly as shown at 7,in Figs. 2, 3 and 7, so as to close the sides of the saw slot and forcethe metal into the notches or recesses 6 of the spring tongue +L, thussecurely looking the base end of the latter to the end 2 of the hook,and it will be noted that the seat 3 is located out of verticalalinement with the center of the saw slot 5, so that the free end of thespring tongue 4 will normally be held into engagement with its seat. Inpractice, the body portion of the link is bent inwardly toward thespring tongue so as to fit the curvature of an automobile the when thehook is used for fastening an antiskidding chain thereon. 4

It will be understood that the sides of the metal may be forced togetherand into the notches or recesses 6 by placing the loop upon a suitabledie-block and striking the opposite side with a hammer, or by means of asuitable stamp-press having suitably shaped die-block and punch forforcing the metal of the link into the notches or recesses as thepunching tool descends, as will be readily understood. 7

It will thus be seen that we provide an exceedingly simple and efficientsnap-hook, which can be manufactured at considerably less cost thanthose now upon the market, and one by which connections between the endsof a chain may be readily made, and, furthermore, by our construction,it will be apparent that, in the event of injury to our snap-hook, anewsnap-hook may be readily attached to the chain without necessitatingspecial work, such as would be required with a snap-hook having a loopat one end and a tongue at its opposite end.

What we claim is l. A snap hook comprising an open link provided at oneend with a tongue-receiving slot, and a tongue mounted in said slot, thefaces of the slot being compressed against the faces of the tongueentirely across the width of the tongue and the lateral margins of thelink opposite a portion of the tongue in the slot being engaged againstside portions of said tongue.

2. A snap hook comprising an open link provided at one end with atongue-receiving set our hands this 19th day of June, A. D. slot, and atongue having one end mounted 1915. in the slot, said end being providedwith oppositely disposed marginal notches, the ma- 5 terial of the linkon opposite faces of the tongue when inserted engaging said oppositefaces entirely across the width of the tongue and the marginal portionsof said material opposite the notches engaging in 10 the notches.

In testimony whereof we have hereunto EDWARD FRANKLIN GROTZ.

WILLIAM WALTER JONES.

WVitnesses to Edward Franklin Grotz:

CHARLES E. ALLARD, WM. MGLENNAN. Witnesses to William vValterJ ones:

A. H. JONES,

H; M. WICHERT.

Copies of this patent may be obtained for five cents each, by addressingthe (Commissioner of Patents, Washington, D. G.

